Can anyone shed some light on how to get CPU temperature and fan speeds in osx? I understand that information is obtained from IOHWSensor in IOKit, but I'm unable to find any reliable information on how to exactly do that.
I've found an article with a sample program - http://www.booktou.com/node/148/0321278542/ch10lev1sec7.html but all I get with it is the GPU temperature. I'm sure there are cpu temperature sensors on the unibody macs, so that means i'm doing something wrong.